Display an armature with one root bone
The problem is, that the animation uses so much space, that it doesn't appear anywhere near the center. You could scale the armature and its animation while importing 



or use the Graph Editor, which is more flexible.



You can use the Graph Editor to move G and  scale S the F-Curves accordingly. Select the Armature ("bag") in the Outliner, switch to Pose Mode, press A to select the bone and switch a window to Graph Editor.